GB1497179A - Controlling braking forces on the wheels of trailers - Google Patents

Controlling braking forces on the wheels of trailers

Info

Publication number
GB1497179A
GB1497179A GB48644/75A GB4864475A GB1497179A GB 1497179 A GB1497179 A GB 1497179A GB 48644/75 A GB48644/75 A GB 48644/75A GB 4864475 A GB4864475 A GB 4864475A GB 1497179 A GB1497179 A GB 1497179A
Authority
GB
United Kingdom
Prior art keywords
trailer
overrun
switch
signal proportional
amplifier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB48644/75A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimler Benz AG filed Critical Daimler Benz AG
Publication of GB1497179A publication Critical patent/GB1497179A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B60T13/741—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on an ultimate actuator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/20—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
    • B60T8/1708—Braking or traction control means specially adapted for particular types of vehicles for lorries or tractor-trailer combinations

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

1497179 Trailer overrun brakes; automatic control DAIMLER-BENZ AG 26 Nov 1975 [20 Dec 1974] 48644/75 Headings F2F and F2E To control the braking forces on the wheels of a trailer for eliminating forces occurring in the coupling 2, (3) between a towing vehicle and the trailer (i.e. for eliminating overrun), a static force reference value and at least one dynamic force value of the forces occurring in the coupling 3 are measured electrically and combined to form an electrical control signal which regulates the trailer breaking forces. As particularly described, the static force reference value is the "overrun path" of the trailer, that is the distance by which the connection from the trailer axle to the trailer coupling varies when the trailer runs into the towing vehicle, a first said dynamic force value is overrun speed and a second (optional) said dynamic force value is overrun acceleration. In the illustrated embodiment a potentiometer 6 mechanically connected to a towbar 2 provides a signal proportional to the overrun path which signal is fed via a changeover switch 25 to a matching amplifier 26 at the output of which an electrical signal proportional to the overrun path appears, and to a differentiating element 28 at the output of which an electrical signal proportional to overrun speed appears, which signal passes to another differentiating element 30 at whose output appears an electrical signal proportional to overrun acceleration. The three signals are applied to a summing amplifier 32 via respective multiplier elements 27, 29, 31, and thence to a comparator 33 and via a power amplifier 35 and a diode 40 to an electric trailer brake 38. The power amplifier 35 is connected to a current source only when a switch 36 is closed by operation of a brake pedal B. When reverse gear is engaged or the reversing lamp is switched on the switch 25 is switched over, the input magnitudes are reversed in polarity and may be differently weighted, and the voltage from potentiometer 6 now passes by way of an inverter amplifier 41. A voltage source 13 is provided on the trailer which acts on the trailer brake 38 if the trailer breaks away to close a switch 39.
GB48644/75A 1974-12-20 1975-11-26 Controlling braking forces on the wheels of trailers Expired GB1497179A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742460450 DE2460450A1 (en) 1974-12-20 1974-12-20 METHOD AND DEVICE FOR REGULATING THE BRAKING FORCE ON TRAILERS 'WHEELS

Publications (1)

Publication Number Publication Date
GB1497179A true GB1497179A (en) 1978-01-05

Family

ID=5934033

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48644/75A Expired GB1497179A (en) 1974-12-20 1975-11-26 Controlling braking forces on the wheels of trailers

Country Status (6)

Country Link
US (1) US4050550A (en)
DE (1) DE2460450A1 (en)
FR (1) FR2294888A1 (en)
GB (1) GB1497179A (en)
IT (1) IT1052330B (en)
SE (1) SE411330B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987005571A1 (en) * 1986-03-20 1987-09-24 Jorma Saramo A method and an apparatus for automatically ajdusting the brakes of an articulated vehicle provided with pneumatic brakes
WO1991012160A2 (en) * 1990-02-16 1991-08-22 Bloxwich Engineering Limited Controlling braking forces in tractor-trailer combinations
GB2353340B (en) * 1999-08-20 2003-11-05 Vincent Roy Garvey Trailer safety

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4222614A (en) * 1979-02-22 1980-09-16 Warner Electric Brake & Clutch Co. Surge control for electrical trailer brakes
US4984852A (en) * 1987-04-27 1991-01-15 Eaton Corporation Trailer mounted tractor-trailer brake control system
US5050937A (en) * 1989-08-07 1991-09-24 Tekonsha Engineering Company Controller for electric braking systems
US5149176A (en) * 1989-08-07 1992-09-22 Tekonsha Engineering Company Controller for electric braking systems
US5352028A (en) * 1989-08-07 1994-10-04 Tekonsha Engineering Company Controller for electric braking systems
US5333948A (en) * 1993-06-22 1994-08-02 Tekonsha Engineering Company Multiple-gain electronic brake actuator with trigger point inertial sensor
US5700068A (en) * 1995-10-16 1997-12-23 Tekonsha Engineering Company Positioning apparatus for inertial sensors
US6068352A (en) * 1996-08-20 2000-05-30 Tekonsha Engineering Company Microprocessor-based control for trailer brakes
CA2303060A1 (en) 1999-04-14 2000-10-14 United States Gear Corporation Towed vehicle brake controller
US6282480B1 (en) 1999-10-29 2001-08-28 Dennis M. Morse Electronic brake controller and display
US6512452B1 (en) * 2000-05-18 2003-01-28 Astoria Industries Of Iowa Inc. Redundant electric trailer brake circuit
US6445993B1 (en) 2000-11-22 2002-09-03 Larry Eccleston Brake control unit
US8789896B2 (en) 2004-10-08 2014-07-29 Cequent Electrical Products Brake control unit
US8746812B2 (en) 2004-10-08 2014-06-10 Marcia Albright Brake control unit
DE102007036907A1 (en) * 2007-08-06 2009-02-12 Bpw Bergische Achsen Kg Device and method for detecting the idle stroke of vehicle brakes accumulation braked trailer vehicles
LU92205B1 (en) * 2013-05-29 2014-12-01 Iee Sarl Transducer arrangement for measuring load variations
WO2018053409A1 (en) 2016-09-16 2018-03-22 Horizon Global Americas Inc. Driver and diagnostic system for a brake controller
AU2017370920B2 (en) 2016-12-07 2024-06-20 Horizon Global Americas Inc. Automated gain and boost for a brake controller

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE344912B (en) * 1969-05-23 1972-05-08 Linde Int Ab
US3899216A (en) * 1974-01-28 1975-08-12 Westinghouse Electric Corp Braking system for a multi-car vehicle
US3892296A (en) * 1974-04-01 1975-07-01 Dico Company Inc Trailer hitch and brake actuator assembly

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987005571A1 (en) * 1986-03-20 1987-09-24 Jorma Saramo A method and an apparatus for automatically ajdusting the brakes of an articulated vehicle provided with pneumatic brakes
GB2208415A (en) * 1986-03-20 1989-03-30 Jorma Saramo A method and an apparatus for automatically adjusting the brakes of an articulated vehicle provided with pneumatic brakes
GB2208415B (en) * 1986-03-20 1990-10-24 Jorma Saramo Apparatus comprising a tractor and means for automatically adjusting the brakes of articulated vehicles including a tractor
WO1991012160A2 (en) * 1990-02-16 1991-08-22 Bloxwich Engineering Limited Controlling braking forces in tractor-trailer combinations
WO1991012160A3 (en) * 1990-02-16 1991-10-31 Bloxwich Eng Controlling braking forces in tractor-trailer combinations
US5286094A (en) * 1990-02-16 1994-02-15 Bloxwich Engineering Limited Controlling braking forces in tractor-trailer combinations
GB2353340B (en) * 1999-08-20 2003-11-05 Vincent Roy Garvey Trailer safety
US6705684B1 (en) 1999-08-20 2004-03-16 Vincent Roy Garvey Trailer brake control system with safety function

Also Published As

Publication number Publication date
IT1052330B (en) 1981-06-20
DE2460450A1 (en) 1976-06-24
SE411330B (en) 1979-12-17
SE7514398L (en) 1976-06-21
FR2294888A1 (en) 1976-07-16
FR2294888B1 (en) 1980-05-16
US4050550A (en) 1977-09-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee